Elevator-hatchway gate



Dec. 4 1923. n 1,476,449

M. F. KEvLlN ELEvATo'R HATcHwAY GATE Filed Nov. 19. 1920 2 Sheets-Sheet 1 Dec. 4 1923. 1,476,449

M.l F. KEVLIN ELEVATOR HATCHWAY GATE l Filed Nov. 19, 1920 2 Sheets-Sheet 2 f2? vena y 114W EL. Kwam e@ @zg QVMSO@ worney.

Patented Dec. 4, 1923.

U'ITED STATESy MATHEW F. IKEVLIN, OF SPRINGFIELD, VERMONT.

ELE'VATOR-HATCHWAY GATE.

Application led November 19, 1920. Serial Nor 425,168.

To aZZ whom it may concern:

Be it known that I, MATHW F. KEVLIN, a citizen of the United States, residing at Springfield, in the county of Windsor, State of Vermont, have invented a certain new and useful Improvement lin Elevator-Hatchway Gates, of which the following is a specication, reference being had therein to the accompanying drawings.

The invention relates to the controlling and operating mechanisms of the verticallymovable gates which are employed as guards in connection with the hatchways of elevators, for instance. l

The invention, firstly, consists in semiautomatic hatchway-gate mechanism so contrived and combined that the gate will not be raised automatically as the car passes, but will be left to be raised by hand, the said mechanism includingmeans whereby the gate, after having been raised, is locked in raised position while the car remains at the hatchway alongside which the gate is applied, the mechanism further being contrived to operate so that movement of the car away from the hatchway, either up or down, is accompanied by auto-matic closing gif the gate into position to serve as a The inventionconsists, further, in hatchway-gate mechanism which is convertible at will from semi-automaticity, as just eX- plained, to complete automaticity, and vice versa.

The drawings show one embodiment of the invention in preferred form.

Fig. 1- of the drawings is a perspective view showing the-said embodiment, with the hatchway-doors and gate closed.

Fig. 2 is a view of like character showing the doors and gate open.

The drawings represent at 1 a portion of one of the floors of a building, the said lioor having therein a hatchway which is protected by means of hatch-doors 2, 2, which are hinged at 3, 3, at 'opposite sides of the hatchway, asrusual. The gate that is shown alongside the said hatchway comprises upper and lower bars 4 and 5, and slats 6, 6, extending vertically betweenthe said bars l and 5, andr connectedpivotally at their ends with the said bars. The upper bar t is mounted pivotally at one end thereof upon a pivotal support constituted by a horizontal rail or bar 7 located at one side'of the hatchway andhaving one end thereof attached to the corresponding guide-post 8 for the elevator car, the outer portion of the said bar 7 being sustained byy a vertical post 9. The horizontal bar 7 serves as a railing at the side of the hatchway at which it is located. AnV

eye or bearing in connection with the said upper bar 4 of the gate is fitted-to the said bar 7 rockshaft for the purposes of the invention'A is conveniently actuated in proper time-.relation with'the passage of the elevator-car through the hatchway, in its movements up and down. In the case of this embodiment of the invention, the rockshaft is furnished with an arm 13 adapted to project inwardly part way across the adjacent hatch-door, and also adapted for engagement therewith, as by means of a pad block 14 carried by the said arm and making contact with the wearpiece 15 attached to the hatchway-door. Through the interengagement between the wear-piece and the pad-block, lthe arm is moved upwardly and rockshaft. 10 is correspondingly rocked as the hatch-door is opened; as the hatch-door closes, the arm is caused to swing downward and rockshaft 10 is reversely rocked, as through the engagement of a hook or clip 17 attached tothe hatch-door. In practice, any other suitable or equivalent means of actuating the rockshaft 10 from the hatch-door may be employed.

Upon the rockshaft 10 is made fast a member 18 which herein is shown as a wheel, although the form thereof may be varied in practice, this member havino1 a tooth which in this instance is provided` by forming a notch 18a in the periphery of the wheel.

Upon the lower bar 5 of the gate is mounted Y a collar 21, upon which is pivoted at 22 a dog 23 having an engaging portion that is adapted to enter the recess of the wheel so as to engage with thesaid tooth.

In the closed-position of the hatch-doors, the wheel 18 carried by the rockshaft 10 occupies a posititon with its notch or recess l.

and tooth depressed as in the drawings. As the elevator-car in moving either up or down arrives at the floor in connection with which the gate is employed, and the hatchwheel to assume a higher position.- ,Whensemi-automaticity in the working of the gate is desired, the collar-21 is-:fastened .by means of its clamping screw 26 at a point uponl .bar J -at` such a 'distance from member 18 that normally the dog hangs-in a position in which its engagingportion is clear of the tooth of the wheel, as in Fig. l, so Ithatthe wheel may be 'turned'without engagement of its ytooth withthe dog {and consequently without imparting any movement to the gate. 1 This permits Vropening movement `'of the hatch-doors tov -talre place, as the elevator-car moves up or down,jwithout causing gate. The openingv of the gate, when -desiredfto occur, is effected by hand, by swingingit upward.- As `the gatearrives in its highest position, :the engaging portion of its dogfienters `the notch or recessrpof the" wheel on lthe rockshaft and becomes y en# gaged with=the tooth of said wheel so that while'the hatch-doors remain open, the gate also Iis locked in'its upraised, open position.

When-the 7elevator-car leaves the Hoer andthehatch-doors are permittedl or caused to` close the reverse iburning movement of thev rookshaft and wheel permits the gate to swing dow-nv into closedposition in unison' with the closingof the hatch-doors..`

In order toenable the gateto be're'ndered completely automatic, i. le., in order to provide'for effecting-the raisinglof the lgate automatically VAwhen the hatch-doors are opened, I provide for yretaining the engaging portion Vof the'do'g `in the notch yor -re-l cess fof the wheel, and in engagement with the tooth,- as byf means of a pin-y 25 entered intov aproperlylocate'd'hole in the col-lar to whichthe dogis pivoted. Or the collar may be adjusted along fthe lower bar 5 or the' gate, by means of the clamping screw 426,Iso that the dog/will be retained vin adjustment with the notchorrecess of the wheel'.y

The construetional featuresniaybe -varied in practice. The gate may be provided with a foot' 28 for supporting its'vlower portion above the floor, such foot being formed in this'instance bythe downward extension of one of the slats of the gate. Thel eXtremity of theupper bar l ofthe gate may rest, as shown, upon a support in connection with a fixed post 29. The said extremityof the bar a may enter, as shown in Fig. l, a keeper in connectionv with thev said post, or the keeperjmay be combined vwith the bar 30 which extends from the upperv end of the post 29andforms part-oa railing connect ed with the guide-post 8a! at that side of the hatchway, `said keeper serving to restrain the gate from,y being bent orviswung ,toward 'caseof the llower bar- 5 'in'Fig l, to prevent the gate beingsprung toward the hatchway.

The semi-automatic adjustment is preferred for-:use :in connection with a floor or oors intermediate the top and bottom floors. l'tkmay be utilizedinsconneotion with the topfioor also', butfrusually the Isemi-auto-A Vmatic adjustmentfwill be:V used in -connectionf with the intermediate ffloors, and theifullyautomatic 1 withv the top- Hoor;

The illustrated construction permits the:

gate to be located nearer' toor"V farther-froin# thevlront v side `rof the) hatchwa'y without-1y other change than in thelen'gth of Ythefrails f Aor barsfextendingl forward from the guide anyautomaticchange inthe position of the postsS, 8a. j Y n What 'is claimed-,as the invention is',-

- l.y Elevator-hat`chway gate devices comprising, in combination with afrocker which is rocked as the elevator-ear passes', and-a vertically movabler Y hatchway f'gat'e, couplin'gemeans permitting the rocker t0 rock without raising the gateand `ada'ptiedfto' couple the gate, when upraised, with they rocker so as to lower the gate automatically l as the car movesaway fromfthefhatchway. 2. Elevatonhatchway gate devices com-Y meansvwhereby saidfgate'm-a'y be raised 'as as the'f latterv rocks, said coupling means adi well as lowered automaticallysby the rocker" justable to permit the gate to remain atre'st'f` while thev rocker rocks idly duringfthe riseofvr the maand-adapted to couplerthefgatefiafter being4 upraised by other means'gfwithfthefrocker-sof as tov'lower the 'gate automatically 'f as the car moves away from the hatchway. 3.1` Inelevator-hatchwa'y 'gate devices, the' combination with a hatched'oor which- Opensj and closesy as the elevatorecar passesga .lio

vertically-movable gate 'fortthe hatchway,"` and a rocker rocking in unisonW'ith-theopening and Vclosing of the hatch-door, of* coupling means between-:the rockers-'and gate l adapted to leave the gate infclo'se'd fpos'itioni as thefhatch-dooropens and urtheradapted to connect the upraisedgatevwith'the rocker `4 so as to automaticallylowertliega'te'in unison with the closing of lthe hatch-door. 4.1 In elevator-hatchway` gate devices, the

combination with a hatch-doorfwhich opens and closes as the elevator-,car passes, aver` izo tically-movable gate for the hatchway, anda rocker rocking in unison with the opening! and closing of .thehatch-door, of coupling means whereby saidjga't'e may be=raised as" well as loweredautomatically by the' rocker as the latter rocks, saidcoupling meansadjustable to permit the gate to remain at vrest while the rocker rocks idly during the rise of the car, and adapted to couple the gate, after being upraised by other means, with the rocker so as to lower the gate automatically as rthe car moves away from the hatchway.

5. In elevator-hatehway gate devices, the combination with a hatch-door which opens and closes as the elevator-car passes, a vertically-movable gate for the hatchway, and a rocker rocked by the hatch-door, of coupling means between said rocker and gate, normally disconnected to permit the rocker to rock without controlling the gate, and adapt- A ed to connect them, as desired, so that the gate moves in unison wlth'the sald rocker.`

6. In elevator-hatchway devices, the combnation with a vertically-swinging gate for the liatchway, a horizontal rockshaft which is rocked as the elevator-car passes, and a member turning With said rockshaft, of means automatically engaging the gate, when upraised with said member so as to swing in unison with the downward turning of the rockshaft, said means adapted to be rendered idle at will.

In testimony whereof l affix my signature in vpresence of two witnesses.

MATHEW F. KEVLN.

Witnesses:

CEAS F. RANDALL, ELLEN O. SPRING. 

